54 lines
2.2 KiB
Bash
54 lines
2.2 KiB
Bash
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#!/usr/bin/env bash
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#
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# build-win.sh — cross-build the MEMLNaut VCV plugin for Windows x64, here, in a
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# RESOURCE-BOUNDED Docker container (prebuilt mingw-w64; no GCC/toolchain compile).
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#
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# Why Docker + caps: this host also runs live services. The container is hard-
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# capped (CPU + memory + no extra swap) so the build physically cannot starve or
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# crash the host — the cgroup OOM-kills the container, not the system, if it ever
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# exceeded the cap. In practice this build peaks well under the cap (it only
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# apt-installs prebuilt mingw + compiles two .cpp files), and the host stays at
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# full free RAM throughout. Tune CPUS / MEM below for your machine.
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#
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# Output: vcv/dist/MEMLNaut-<version>-win-x64.vcvplugin
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# Requires: docker. Run from anywhere; paths are resolved from this script.
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set -euo pipefail
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CPUS="${CPUS:-6}" # cores the container may use
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MEM="${MEM:-8g}" # hard memory cap (== memory-swap, so no host swap)
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RACK_SDK_VERSION="${RACK_SDK_VERSION:-2.6.4}"
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)" # vcv/
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WORK="$(mktemp -d /tmp/vcv-win-build.XXXXXX)"
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trap 'rm -rf "$WORK"' EXIT
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echo "==> staging a clean copy of the plugin source"
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cp -r "$SCRIPT_DIR/." "$WORK/"
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rm -rf "$WORK/build" "$WORK/dist" "$WORK/plugin.so" 2>/dev/null || true
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cat > "$WORK/_in-container.sh" <<EOF
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set -euo pipefail
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export DEBIAN_FRONTEND=noninteractive
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apt-get update -qq
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apt-get install -y -qq g++-mingw-w64-x86-64-posix make unzip wget zstd tar jq >/dev/null
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cd /tmp
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wget -q "https://vcvrack.com/downloads/Rack-SDK-${RACK_SDK_VERSION}-win-x64.zip"
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unzip -q "Rack-SDK-${RACK_SDK_VERSION}-win-x64.zip"
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cd /src
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export RACK_DIR=/tmp/Rack-SDK
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export CC=x86_64-w64-mingw32-gcc-posix CXX=x86_64-w64-mingw32-g++-posix
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export STRIP=x86_64-w64-mingw32-strip OBJCOPY=x86_64-w64-mingw32-objcopy
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make clean >/dev/null 2>&1 || true
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make -j${CPUS} dist
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ls -la dist/
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EOF
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echo "==> building Windows plugin in a bounded container (cpus=$CPUS, mem=$MEM, no extra swap)"
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docker run --rm --cpus="$CPUS" --memory="$MEM" --memory-swap="$MEM" \
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-v "$WORK:/src" ubuntu:24.04 bash /src/_in-container.sh
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mkdir -p "$SCRIPT_DIR/dist"
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cp "$WORK"/dist/*-win-x64.vcvplugin "$SCRIPT_DIR/dist/"
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echo "==> done: $(ls "$SCRIPT_DIR"/dist/*-win-x64.vcvplugin)"
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